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Finding the Third Proportional to 143,203.50 and 218,574

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Solution

The third proportional to 143,203.50 and 218,574 is: 333,613.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,203.50 : 218,574 = 218,574 : x
  2. Step 2: Convert to fraction form
    143,203.50/218,574 = 218,574/x
  3. Step 3: Cross multiply
    143,203.50x = 218,574 × 218,574
  4. Step 4: Simplify right side
    143,203.50x = 47,774,593,476
  5. Step 5: Solve for x
    x = 47,774,593,476/143,203.50
  6. Step 6: Final answer
    x = 333,613.31

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Why These Related Problems?

These problems maintain the same ratio (1.53) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.